The last two episodes to air next month have been revealed by two contradicting sources.
According to Terebikun (also known as Televi, among other names), the 53rd episode of Pocket Monsters Best Wishes! is set to air on Oct. 20. The episode 「アイリスとモノズ！育てや修行！！」 Iris and Monozu! Day Care Training!! features Iris befriending a Monozu at a Day Care awaiting its Trainer to return. On the other hand, the 54th episode, 「怪傑ア☆ギルダーVSフリージ男！」 Strange Hero A☆Gilder VS Freegeoman!, is set to air Oct. 27. The episode features A☆Gilder, an Agilder-themed, motorcycle-riding hero, and his Agilder. Opposing him are the Freegeo mask-wearing Freegeoman, who owns a Baniricchi, and his two henchmen, who are both dressed up as Vanipeti, the Pokémon they both have.
Prior to this, Gekkan TV Guide revealed that on Oct. 20, 「ピカチュウのふしぎなふしぎな大冒険」 Pikachu's Big Mysterious Adventure, a Pikachu short, was to air instead of a Best Wishes! episode. According to the source, the 53rd episode of Best Wishes!, 「虹の彼方へ！マラカッチでミュージカル！！」 Over the Rainbow! Maracacchi Musical!!, was to air the week later. The episode features Maracacchi, as well as Pokémon Musicals.
It is currently unknown what will air on Oct. 20 and 27. Also, all concepts of three of the revealed episodes were featured in the latest series of preview clips for Best Wishes! episodes, alongside an episode featuring the Champion, which was also revealed by Terebikun.
In English, Monozu is known as Deino, Agilder is known as Accelgor, Freegeo is known as Cryogonal, Baniricchi is known as Vanillish, Vanipeti is known as Vanillite and Maracacchi is known as Maractus.